Home / 81,361.35-112,275.36-47,370.83

Finding the Fourth Proportional to 81,361.35, 112,275.36 and 47,370.83

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Solution

The fourth proportional to 81,361.35, 112,275.36 and 47,370.83 is: 65,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.35 : 112,275.36 = 47,370.83 : x
  2. Step 2: Convert to fraction form
    81,361.35/112,275.36 = 47,370.83/x
  3. Step 3: Cross multiply
    81,361.35x = 112,275.36 × 47,370.83
  4. Step 4: Simplify right side
    81,361.35x = 5,318,576,430.37
  5. Step 5: Solve for x
    x = 5,318,576,430.37/81,361.35
  6. Step 6: Final answer
    x = 65,369.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.